characteristics CMF Buds Pro Dimensions and weight Headphones : 31.6 x 21.6 x 22.5 mm. 4.8 grams. Box cameras : 58 x 58 x 24 mm. 44.5 grams. drivers dynamic driver 10mm Made of monodynamic liquid crystal polymer + polyurethane. Battery and autonomy Headphones : 55 mAh for a battery life of up to 11 hours (without ANC) or 6.5 hours (with ANC). Box cameras : 460 mAh for a range of up to 39 hours (without ANC) or 22 hours (with ANC). Water and dust resistant IP54 . Audio technologies Active noise cancellation up to 45 dB transparency mode, Clear Voice for call noise cancellation with 3 microphones (each earbud) Ultra Bass by Nothing, AAC and SBC codecs and low latency mode. Frequency range 5000Hz. Connectivity and extras Bluetooth 5.3 touch controls and proximity sensing.