Wireless stereo sound? You can do this with these white Bluetooth headphones from Grundig with charging cradle. Listen to music and make calls wirelessly via touch control. The earphones have a TWS connection: True Wireless. They are ready to use as they automatically turn on and connect to each other. Pairing with your mobile phone, iPad or other Bluetooth-enabled device is also easy. Each earplug is operated individually via a touch control. A short touch is enough to react. With these wireless earbuds, you can listen to music and answer calls thanks to the built-in microphone. Charging: the earplugs emit a signal when they are almost empty. Charging is done via the included charging station and the USB cable type C. The LED lights indicate the charging status. In the charging bag, you can also store the earplugs neatly. Details Grundig earplugs sound reproduction: stereo TWS: true wireless/fully wireless. Frequency range (kHz): 20-20KHZ speaker impedance (Ω): 32Ω. Speaker sensitivity (dB): 98.1db. Speaker driver diameter (mm): 8 mm. Microphone impedance (Ω): 2.2KΩ. Microphone sensitivity (dB): -40±3 Bluetooth signal rich dB Bluetooth signal rich dB Distance (m): up to 10 metres. Touch control. Maximum standby time: 60 hours. Maximum talk time (hours): 2 hours. Maximum playback time (hours): 3 hours. Maximum charging time (hours): 2 hours. Length of charging cable (m): 0.5 m. Input connection: USB Type-C. Input voltage (V): 5 V. Input current (A): 0.5 A. Colour: white. Earbuds: ABS housing. Material: ABS Max. Transmission power (dBm): +2dBm radio frequency range (GHz): 2.402 - 2.480 GHz radio frequency output (dBµA/m): max. 2.5mW/10m Bluetooth version: V5.0 Bluetooth chipset brand/type: JL 6963 Bluetooth profile(s): A2DP, AVRCP, HFP, HSP Bluetooth frequency range (GHz): 2.402 - 2.480 GHz Bluetooth class: Class II battery capacity (headphones) (mAh): 35 mAh battery capacity (charging case) (mAh). 350): 350. mAh